Sole roughing machine



: Dec. 19, 1933. w. c. CARD, JR 1,939,661

SOLE ROUGHING MAcHIN'E Filed Nov. 29, 1930 I INVENTOR Q W "-1 N BY ATTORNEY Patented Dec. 19, 1933 UNITED STATES SOLE ROUGHING MACHINE William'Carpenter Card, Jr.,

assignor to Compo Shoe tion, New York, N. ware Winthrop, Mass., Machinery Corpora- Y., a corporation of Dela- Application November 29, 1930 Serial No. 498,949

16 Claims.

This invention relates to sole roughing machines.

In the manufacture of shoes by the cementing process, in which the sole is held to the upper by cement, it is desirable that the surface of the leather of either the sole or the upper, or both, shall be roughened in order to give better adhesion. This roughening is particularly desirable in the case of the sole, the texture of which is relatively hard compared to the leather of which the upper is made. v

It is an object of this invention to provide a device which will effect this roughening operation efliciently and quickly.

It is a further object to provide a device which will conform to the varying surfaces which the sole presents in this type of shoe and secure the desired toughening notwithstanding those variations.

0 It is a further object to provide a simple and efiicient device which will be economical to manufacture and simple and eflicient in its operation.

Other objects of the invention will, in part, be obvious and will, in part, appear hereinafter.

The invention accordingly comprises the features of construction, combinations of elements and arrangements of parts which will be exemplified in the constructions hereinafter set forth, and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention, reference should be had to the following detailed description, taken in connection with the accompanying drawing, in

a which Figure 1 is a side elevation of a machine embodying this invention, Figure 2 is a front elevation of the same, Figure 3 is a detail showing the relative position of the support elements when an unscarfed portion of the sole is oper- 0 ated upon, and Fig. 4 is a detail corresponding to Fig. 3 showing the relative positions of the support elements when a scarfed portion of thesole is operated upon.

In the drawing, the numeral 10 designates a frame, resting upon a base, 11, having three outstanding arms, 12, 13 and 14. The arm 12 carries a sole supporting element, indicated generally at 15, adapted to support the soles while being operated upon by the roughing element,

and the arm 14 carries the roughing element, in-

dicated generally at 16, and the arm 13 carries a guide, indicated generally at 17, to assist in positioning the soles.

The support, 15, comprises generally, a pair of elements 20 and 21, vertically slidable in a 'manner. As herein illustrated, a pin, 37, extendrecess, 22, of a head, 23. One of these members, that is 20, has a flat upper surface 24, and the other member 21, has an inclined upper surface, 25.

An equalizing link 26, pivoted in the head, 23, upon a rod 27, is provided with two arms, 28 and 29, in position to engage respectively the elements 20 and 21 so that a depression of one of these elements will cause the other element to be raised by the rocker arm.

The rod 27, is preferably substantially in alignment with the surface of contact between the elements 20 and 21 so that the pressure between these two elements may be equalized. The undersurfaces of the members 20 and 21 are preferably flat. In this way, as either member is depressed, it engages the arm 28 or 29 by the inner corner, thereby greatly shortening the lever arm, offering greater resistance to further depression. r The head, 23, is carried upon a pillar, 30, which is slidable within a top sleeve, 31, and a bottom sleeve or cup, 32, both of which are preferably screwthreaded in a vertical recess, 33, in the arm, 12. The underside of the pillar, 30, is hollowed out as shown at 34 and, partly enclosed within that recess and partly enclosed within the interior of the cup, 32, is a spiral spring, 35, adapted to bear upwardly upon the pillar, 30. A lock nut, 36, up on the outside of the cup, 32, serves to maintain the cup in any adjusted position.

The pillar, 30, is designed to be movable vertically in response to the action of the spring, 35, but is prevented from rotation in any convenient ing through the member, 30, moves in guide slots in the arm, 12, andthis pin is so located that it will encounter the lowermost end, 38, when the pillar, 30, has been raised to its proper position. With this construction it will be clear that the uppermost position of the elements, 20 and 21, may be determined by rotating the sleeve, 31, and that the upward resistance to depression of the elements, 20 and 21, may be altered by varying the position of the cup, 32, and thereby varying the compression of the spring, 35.

The roughing element, 16, comprises generally a head, 40, carried at the lower end of a vertical shaft, 41, which is journalled in the arm, 14. This head, 40, carries on its underface a plurality of needles, 42, which are vertically disposed in spaced relation with their points in a single plane, and this head is in vertical alignment with the elements 20 and 21.

A ball bearing member, 43, held in place by a flanged sleeve, 44, serves as a circumferential bearing for the shaft, 41, and a thrust ball bearing, 45, takes the vertical strains. The shaft, 41, in the upper end is provided with a pulley, 46, adapted to be driven by a belt from any convenient source of power and to this end, drive pulleys, 4'7, are journalled upon the frame, 10, in alignment with the pulley, 46. A hood, 48, is adapted to enclose the pulleys, 46 and. 47, for purposes of safety.

Means are provided for withdrawing the finely powdered leather which results from the roughing process. To accomplish this the frame, 10, is

hollow as shown at 49 and this hollow extends outwardly through the arm, 13, to a point adjacent to the roughing needles and means are provided (not shown) for withdrawing the air from the chamber in the interior of the frame. This means may consist of no more than a pipe leading through the floor and no illustration thereof would seem to be required.

Where shoes are manufactured by the cementing process, a portion of the sole is left in the natural thickness of the leather clear to the edge of the sole but a portion of the sole is scarfed off to leave the edge thinner than the natural thickness of the leather.

To utilize the machine, the edge of the sole at the proper point is caught between the surfaces, 24 and 25, and the revolving needles. It is comparatively easy to insert the sole by reason of the fact that the element, 20, may be initially slightly depressed until the sole encounters also the element, 21. The sole is inserted into the machine until its periphery touches the guide, 17. It is thereupon quickly drawn through the machine, keeping the edge in contact with the guide. During the time when that portion of the sole is worked upon where its periphery is not scarfed, the elements, 20 and 21, are in the position shown in Figure 3, with the surface, 24, in the same plane as the higher side of the surface, 25. As soon, however, as a scarfed portion of the sole comes beneath the needles, spring 35 urges sole support 15 upwardly, element 24 bearing. against the thicker portion of the sole and effecting relative upward movement of element 25 through levers 28 and 29, element 25 being raised relatively to element 24 adequately to care for the altered contour of the sole portion now being wbrked upon. When the scarfing cut is on the upper side of the sole, as viewed in Fig. 4, element 21 will flex the scarfed sole periphery sufficiently to bring its upper surface into cooperating contact with the roughing elements. This arrangement of the parts is illustrated in Fig. 4.

It will be clear, therefore, that the machine will maintain the upper surface of the sole in firm contact with the needles over the scarfed portions and over the unscarfed portions.

Since certain changes may be made in the above construction and different embodiments of the invention may be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter oflanguage, might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A device of the character described comprising a power driven roughing tool, a sole support, and means directly controlled by varying angles of the edge of a sole for automatically varying the effective angle of the support to the tool.

2. A roughing machine for soles comprising in combination a power driven roughing element, a sole support for pressing a sole against said element, said support including a pressure equalizing element responsive to the thickness of the inner and outer edges of the surface to be roughed, and adapted to equalize the pressure between the two said edges.

3. A roughing machine for soles comprising in combination a power driven roughing element, a sole support for pressing a sole against said element, said support having an outer element for engaging the sole opposite the outer edge of the surface to be roughened and an inner element for engaging the sole opposite the inner edge of said surface, and means for articulating said elements together.

4. A roughing machine for soles comprising in combination a power driven roughing element, a sole support for pressing a sole against said element, said support having an element presenting a face parallel to the face of the roughing tool and an element having a face at an angle to the face of the roughing tool, and means articulating the two elements together.

5. A roughing machine for soles comprising in combination a power driven roughing element, a sole support for pressing a sole against said element, said support having an element presenting a face parallel to the face of the roughing tool and an element having a face at an angle to the face of the roughing tool, means articulating the two elements together, and common means for prelssing both said elements toward the roughing 6. A roughing machine for soles comprising, in combination, a power driven roughing element, a support for pressing a sole against said element including a head, a pair of blocks slidable in said head, one of said blocks being adapted to be opposite the outer edge and the other opposite the inner edge of the lasting allowance of a sole, an equalizing link connecting said blocks to said head, and spring means for urging said head toward said element.

7. A roughing machine for soles comprising, in combination, a power driven roughing element, a support for pressing a sole against said element including a head, a pair of blocks slidable in said head, one of said blocks being adapted to be opposite the outer edge and the other opposite the inner edge of the lasting allowance of a sole, an equalizing link connecting said blocks to said head, spring means for urging said head toward said element, and stops for limiting the movement of the head toward the element.

8. Arougbing machine for soles comprising, in combination, a power driven roughing element, a support for pressing a 'sole against said element including a head, a pair of blocks slidable in said head, one of said blocks being adapted to be opposite the outer edge and the other opposite the inner edge of the lasting allowance of a sole, the former of said blocks having an upper surface inclined downwardly toward the other block, and the latter block having a substantially flat upper surface.

9. A roughing machine for soles comprising, in combination, a frame, a power driven roughing element carried by said frame, a support for pressing a sole against said element and means for supporting said support including a sleeve screwed for vertical adjustment in said frame, a post slidable in said sleeve and carrying said support at its upper end, a stop upon said post for engaging said sleeve to limit the upward movement of the post, and spring means for urging the post upwardly.

10. A roughing machine for soles comprising, in combination, a frame, a power driven roughing element carried by said frame, a support for pressing a sole against said element, means for supporting said support including a sleeve screwed for vertical adjustment in said frame, a post slidable in said sleeve and carrying said support at its upper end, a stop upon said post for engaging said sleeve to limit the upward movement of the post, spring means for urging the post upwardly, and means associated with the frame for preventing rotation of the support.

11. A roughing machine for soles comprising, in combination, a frame, a power driven roughing element carried by said frame, a support for pressing a sole against said element, means for supporting said support including a pair of sleeves independently adjustably screwed into said frame in alignment, a post slidable in one of said sleeves, carrying the support at its upper end, a spring carried by the other sleeve and bearing against said post, and a stop upon said post for engaging the first mentioned sleeve to limit the upward movement of the post.

12. A roughing machine for soles comprising, in combination, a frame, a power driven roughing element carried by said frame, a support for pressing a sole against said element, means for supporting said support including a pair of sleeves independently adjustably screwed into said frame in alignment, a post slidable in one of said sleeves, carrying the support at its upper end, a spring carried by the other sleeve and bearing against said post, a stop upon said post for engaging the first mentioned sleeve, to limit the upward movement of the post, and means associated with the frame for preventing rotation of the support.

13. In a sole roughing machine having a sole roughing element, a sole support comprising a head, a pair of blocks slidable in said head, a rod pivoted transversely in said head, and an equalizing link carried by said rod and engaging the undersurfaces of said blocks.

14. In a sole roughing machine having a sole roughing element, a sole support comprising a head, a pair of blocks slidable in said head, a rod pivoted transversely in said head, and an equalizing link carried by said rod and engaging the undersurfaces of said blocks, said blocks being positioned on said link by a leverage which shortens for either block as it descends.

15. A roughing machine for soles having scarfed portions, comprising a power driven roughing tool, a sole support including relatively movable juxtaposed presser elements, and means directly controlled by varying angles of the edge of a sole for automatically varying the effective angle of the support to the tool through relative movement of said elements.

16. A roughing machine for soles having scarfed portions, comprising a power driven roughing tool, a support for pressing a sole against said tool including a pair of relatively movable juxtaposed presser elements, one of said elements being adapted to be opposite the outer edge and the other opposite the inner edge of the lasting allowance of a sole, the former of said elements having an upper surface inclined downwardly toward the other element, and the latter element having a substantially flat contact with the sole, and spring means urging said support toward said tool.

WILLIAM CARPENTER CARD, JR. 

